Sealing label and packaging container

ABSTRACT

A sealing label that includes a first base material, and a second base material which is bonded to one surface of the first base material, and is repeatedly and removably bonded to an opening of a packing container so that the base material seals the opening; the label includes a sealing part which seals the opening; and a support part which is connected with at least one part of the sealing part and bonded to the packing container; wherein the sealing part and the support part has a boundary part, the boundary part has a cut line, wherein the cut line extends in a direction intersecting with a peeling direction to which the sealing part is peeled, the second base material is cut and divided into a proximal area, which is on the proximal side in the peeling direction, and a distal area, which is on the distal side in the peeling direction, by the cut line; and a peeling layer, which releases the first base material from the second base material, is provided between the first base material and the second base material and at the distal side from the cut line in the peeling direction.

TECHNICAL FIELD

The present invention relates to a sealing label, and more specificallyto a sealing label which is removably and repeatedly bonded to a surfaceof a packing container and which seals the packing container, andrelates to a packing container which includes the sealing label.

Priority is claimed on Japanese Patent Application No. 2011-085561,filed Apr. 7, 2011, the content of which is incorporated herein byreference.

BACKGROUND ART

Conventionally, a wet tissue wherein liquid medicine and the like areimpregnated in a tissue or a nonwoven fabric is widely known. When sucha wet tissue is used as a portable wet tissue, it is generallydistributed and used such that the wet tissue is stored in a packing bagwhich is formed of a soft film or the like and has an opening used as aremoval opening.

For such a wet tissue, a removable sealing label which can be repeatedlyremovable is often attached to an opening of a packing bag, in order tomaintain the wettability of the wet tissue, which is housed in thepacking bag, until the tissue is used and to prevent entry of foreignmatters or the like into the packing bag. In this case, when a wettissue is removed, the sealing label is removed to expose an opening,and after the tissue is removed, the remover sealing label is adheredagain to the packing bag to seal the opening so that the opening iscovered by the sealing label. (Refer to Patent document 1)

PRIOR ART Patent Documents

-   Patent document 1: Japanese Patent No. 3512211

DISCLOSURE OF INVENTION Problem to be Solved by the Invention

However, in a packing container 1 described in the Patent document 1, anopenable lid of the packing container is formed by a film which has acertain degree of rigidity. Therefore, when the openable lid is peeleduntil an opening appears and a hand is released from the lid, the lidfalls onto the opening due to the rigidity and elasticity thereof, andtherefore the opening is covered with the lid against the intentions ofa user.

Accordingly, for example, when a hip of a baby or the like is wiped by awet tissue, circumstances are caused such that the second wet tissuecannot be removed as it is since the opening has been covered by thelid. In this way, there is a problem regarding inconvenience.

The present invention is achieved based on the aforementionedcircumstances, and the purpose of the present invention is to provide asealing label which does not easily returns to a state where an openingis covered, even after the label is peeled from the packing container.

Another purpose of the present invention is to provide a packingcontainer wherein such a state where the opening is exposed can besuitably maintained.

Means for Solving the Problems

The first aspect of the present invention provides a sealing label whichincludes

a sheet-like or film-like first base material; and

a sheet-like or film-like second base material which is bonded to onesurface of the first base material, wherein the second base material isrepeatedly and removably bonded to an opening of a packing container sothat the base material seals the opening; wherein

the label includes

a sealing part which seals the opening, and

a support part which is connected with at least one part of the sealingpart and bonded to the packing container;

the sealing part and the support part have a boundary part;

the boundary part has a cut line, which extends in a directionintersecting with a peeling direction to which the sealing part ispeeled;

the second base material is cut and divided into a proximal area, whichexists at the proximal side in the peeling direction, and a distal area,which exists at the distal side in the peeling direction, by the cutline; and

a peeling layer, which releases the first base material from the secondbase material, is provided between the first base material and thesecond base material and at the distal side from the cut line in thepeeling direction.

The second aspect of the present invention is a packing container whichhas art opening and houses a substance therein, and the sealing label ofthe present invention is bonded to the container and covers the opening.

Effects of the Present Invention

According to a sealing label of the present invention, after the labelis peeled from a packing container, the sealing label hardly returns toa state where an opening is covered by the label, while the substance isremoved from the container.

Furthermore, according to the packing container of the presentinvention, the state where the opening is exposed can be suitablymaintained.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view which shows a packaging back to which asealing label of the first embodiment of the present invention isattached.

FIG. 2 is a cross sectional view taken along line A-A of FIG. 1.

FIG. 3 is a perspective view which shows a state wherein the packagingback of FIG. 1 is opened.

FIG. 4 is a cross sectional view taken along line A1-A1 of FIG. 3.

FIG. 5 is a perspective view which shows a packaging back to which asealing label of the second embodiment of the present invention isattached.

FIG. 6 is a cross sectional view taken along line B-B of FIG. 5.

FIG. 7 is a perspective view which shows a state wherein the packagingback of FIG. 5 is opened.

FIG. 8 is a cross sectional view taken along line B1-B1 of FIG. 7.

BEST MODE FOR CARRYING OUT THE INVENTION

The first embodiment of the present invention is explained withreference to FIGS. 1 to 4.

Here, the description below does not limit the present invention, unlessspecified otherwise. Additions, omissions, substitutions, and othermodifications are possible with respect to position, number, form andthe like, within a scope that does not deviate from the intent of thepresent invention. In order to explain the present invention easier, thescale of the structure shown in the drawings may be different from thatof the actual structure.

FIG. 1 is a perspective view which shows a packaging back 50 to which asealing label 1 of the present embodiment is attached. The sealing label1 is an openable and closable label. The packaging back (packingcontainer) 50 to which the sealing label 1 is attached is a containerwhich has been formed in a prescribed shape and which stores asubstance. The materials and structure of the packaging back 50 can beselected optionally in so far as problem is not caused. It is preferablethat a material which can maintain the wettability of the substance isused. The material may be formed as one layer, or may be formed as alaminate which includes plural layers of two or more. For example, thepackaging back is formed by a conventionally known laminate film such asa laminated film wherein, from the surface side (outer side), apolyethylene terephthalate (PET) film, aluminum foil and a heat sealablefilm which is so-called sealant, are laminated and joined in this order.As the laminate film, a film may be used wherein aluminum, silica, oralumina is deposited on a PET film, and a heat sealable film islaminated at the internal surface side thereof. It is acceptable to usea structure wherein any of the layers described above is included, or astructure wherein the layers described above are combined. Concreteexamples of materials which can be preferably used for a packing bag aredescribed below. As a surface material which can be preferably used forthe surface side layer, material which has a foil-like form can be citedsuch as a paper and a film such as PET, OPP (biaxially orientedpolypropylene film), nylon and PVC (polyvinyl chloride). As a barriermaterial which can be used as a barrier, materials can be cited whichhave excellent oxygen barrier properties and vapor barrier propertiessuch as an aluminum foil and a PET film, to which silica or alumina isdeposited or coated, or a PET to which a coating of polyvinylidenechloride is provided. Here, a PET film to which deposition or coatinghas been performed is structured as one film in which a surface materialand a barrier material are combined, and therefore, such a PET film canbe used as it is as one layer for a packing bag as. As the heat sealablefilm, a melt-adherable film can be cited, which has a film melting pointlower than that of a surface material, such as a film of CPP(non-stretched polypropylene film) and PE (polyethylene) and a filmwhich is formed by providing a coating on the inner side of a barriermaterial.

A packaging back 50 has a heat sealed film at the inner side thereof,and a substance 100 is included in the packaging back (refer to FIG. 3).In the present embodiment, a wet tissue 60 wherein liquid medicine andthe like are impregnated in a tissue or a nonwoven fabric is stored as asubstance 100 in the packaging back 50.

A laminate film which forms the packing bag 50 does not permeate waterand oxygen, and is excellent in air tightness. Accordingly, it ispossible to store the wet tissue 60 such that drying of the tissue isprevented and wet state of the wet tissue can be maintained until thetissue is used. The concrete form of the packing bag 50, the layeredstructure of a laminate film which forms the packing bag 50, and thelike can be appropriately changed according to the characteristics andthe like of the substance 100.

At one surface of the packing bag 50, a removal opening (opening) 51 isformed from which the wet tissue 60 can be taken out when it is used.The form of the removal opening 51 is optionally selected and set. Forexample, a circle, a rectangle, a square or the like can be used. In theembodiment, an elliptical opening is formed.

A sealing label 1 is attached to the packing bag 50 so that it can beremoved repeatedly. In a state where the sealing label 1 is bonded tothe packing bag 50, the sealing label 1 covers the removal opening 51 sothat the wet tissue 60 is not exposed to air.

FIG. 2 is a cross sectional view taken along line A-A of FIG. 1, andshows the upper surface portion of the packing bag 50. As shown in FIG.2, a sealing label 1 is structured such that a sheet-like or film-likefirst base material 2 on one surface of which an adhesive layer 2A(first adhesive layer) is formed, and a sheet-like or film-like secondbase material 3 on one surface of which an adhesive layer 3A (secondadhesive layer) is formed are stacked. The first base material 2 islaminated so that the adhesive layer 2A thereof is on the second basematerial 3 and the adhesive layer 2A exists at the side opposite to theside where the adhesive layer 3A is provided. The adhesive layer 3A ofthe second base material 3 is a conventionally known re-removableadhesive layer, and formed of a material which can repeatedly performpeeling and adhesion.

The sealing label 1 is bonded so that the label covers the removalopening 51, as the adhesive layer 3A is bonded to the surface which hasthe opening of the packing container 50. The adhesive strength of theadhesive layer 2A is set so that the adhesive strength thereof is largerthan the adhesive strength of the adhesive layer 3A. Furthermore, in thepresent invention, a surface to which an adhesiveness is provided by thesurface treatment of a base material may be described as an adhesivelayer.

Materials used for the first base material 2 and the second basematerial 3 can be selected optionally. For example, PET, polypropylenesuch as biaxially oriented polypropylene film (OPP) and PET, a mixturethereof, synthetic paper, an optionally selected resin and the like canbe optionally used.

As shown in FIG. 1, the sealing label 1 seals the removal opening 51,and includes a sealing part 10 by which opening and closing areperformed, and a support part 20 which is connected to and supports thesealing part 10.

The sealing part 10 has a first terminal part 10A and a second terminalpart 10B. In planar view, the first terminal part 10A is at the terminalend in the longitudinal direction and has a sharp end, and the crosswiselength of the sealing part 10 increases and then decreases from thefirst terminal part 10A to the second terminal part 10B. The sealingpart 10 is formed so that the sealing part has an approximatelypentagonal shape, when observing the part as the whole.

With respect to the sealing part 10, a removal opening 51 of the packingbag 50 may be exposed when the sealing part 10 is peeled such that thefirst terminal part 10A or the vicinity thereof is held and stripped inthe longitudinal direction (peeling direction), that is, stripped in thedirection where the second terminal part 10B exists.

Here, the form of the sealing part 10 is not limited to the form shownin the present embodiment. Taking the design and the like intoconsideration, the form of the part can be suitably changed such that,in a portion of the periphery thereof, sides which extend in a peelingdirection thereof are made parallel to each other, or curved portionsare included.

As shown in the figure, the second terminal part 10B of the sealing part10 is bonded to the support part 20. Furthermore, in the vicinity of theboth sides of a boundary existing between the support part 20 and thesealing part 10, a pair of slits 21 is formed, wherein the slits contactwith sides of the second terminal part 10B, which extends in thecross-direction, and extend further from the contact portions. Due tothe pair of slits 21, when the sealing part 10 is peeled, the peelingstrength is not liable to act on the support part 20. In the positionwhere the slits contact the second terminal part 10B, the distancebetween the slits 21 increases as the slit approaches the first terminalpart 10A. In the position where the slits do not contact the secondterminal part 10B, the ends of the slits 21 form a “U” like shape. Here,in the present invention, the slits 21 are not essential parts. Forexample, it is acceptable that the label does not include slits 21, andonly includes a cut line 22 (laminate cut line) and a peeling layer 23.

As shown in FIG. 2, at the boundary portion existing between the sealingpart 10 and the support part 20, a cut line 22 which merely cuts theadhesive layer 3A and the second base material 3 is formed. The firstbase material 2 is not cut by the cut line 22. The cut line 22 existsbetween the pair of slits 21, and extends so that it is orthogonal (orapproximately orthogonal) to the peeling direction, and the lineseparates the second base material 3 into a proximal area 3 a, which ison the proximal side in the peeling direction, and a distal area 3 b,which is on the distal side in the peeling direction.

In at least one area of the distal area 3 b, which contacts with the cutline 22, a peeling layer 23 which has predetermined width and length isprovided between the first base material 2 and the second base material3. Accordingly, it is structured such that the first base material 2 andthe second base material 3 are easily separated from each other. Thatis, at the boundary portion of the support part 20 and the sealing part10, there is a part where the adhesive layer 2A and the second basematerial 3 are bonded and a part where the adhesive layer 2A and thesecond base material 3 are easily separated by the effect of the pealinglayer 23. It is preferable that the pealing layer 23 and the cut line 22are connected to each other, and they separate the sealing label 31 tothe sealing part 10 and the support part 20 along with the slits 21. Thepeeling layer 23 can be formed by the optionally selected method in sofar as a peeling area can be formed. For example, the peeling layer 23may be formed by coating a conventionally known peeling varnish on apredetermined part of the second base material 3, or performingconventionally known detackifying treatment to the adhesive layer 2A.

The laminate has a structure wherein an upper portion, which is over thepeeling layer 23 (at the side where the reinforcing base material 4exists) is peeled, and a lower portion, which is at the peeling layer 23or below is not peeled. A terminal end line (side) of the peeling layer23 which is at the support part side and extends in the width directionthereof may be considered as a boundary of the sealing part 10 and thesupport part 20 for convenience sake. The position and the size of thecut line 22 and the slits 21 may be optionally selected. However, it ispreferable that the cut line 22 is formed along the entire width of apeeling portion of the support part 20 which reaches the slits 21. It isalso preferable that the peeling layer 23 is provided along the entirelength of the cut line 22. It is also preferable that the length of thepeeling layer 23 and the length of the cut line 22 are the same.

Here, in FIG. 2, although the peeling layer 23 is shown as a structurewherein the layer is embedded in the second base material 3, the presentinvention is not limited thereto. A structure in which the peeling layer23 is arranged on the flat surface on the second base material is alsoincluded in the present invention.

When the packing bag 50 is formed, a sealing label 1 is positioned andadhered to a laminate film F which is prepared in advance. Then, asshown in FIG. 2, a cut C having a form of a removal opening 51 is formedfrom the lower side of the laminate film F, where the sealing label 1 isnot adhered, to form the removal opening 51. The depth of the cut C ispreferably a depth by which the laminate film F can be certainly cut,but the second base material 3 is not cut.

Subsequently, the laminate film F and another laminate film F, whichdoes not have an opening and does not have a sealing label 1 adheredthereto, are joined to each other, a substance is stored therein, andsealing is performed to complete the packing bag 50.

Operation performed when the packing bag 50 formed as described above isused is explained. When a user holds a first terminal part 10A of thesealing part 10 and pulls it in the peeling direction in order to take asubstance out from the packing bag 50 to which the sealing label 31 isprovided, the sealing label 10 is peeled off from the packing bag 50. Atthis time, an area which is enclosed by the cut C of the laminate film F(hereinafter, referred as “area where an opening is formed F1”) isadhered to the adhesive layer 3A of the second base material 3, andtherefore, as shown in FIG. 3, the area is separated from another areaof the laminate film F together with the sealing part 10, so that theremoval opening 51 is exposed.

When the sealing part 10 is further peeled and the peeled part arrivesat the cut line 22, as shown in FIGS. 3 and 4, the first base material 2is subsequently separated from the second base material 3 clue to thepresence of the cut line 22 and the peeling layer 23. Accordingly, adistal area 3 b, which is on the distal side in the peeling direction,of the second base material 3 does not follow the sealing part 10, andmaintains the state adhering to the packing bag 50. That is, the distalarea 3 b, which is on at the distal side in the peeling direction, isnot separated from the film of the packing bag 50. Furthermore, aposition where the sealing part 10 and the support part 20 are bondedhas low rigidity since the position is merely formed by the first basematerial 2 which includes adhesive layer 2A. Accordingly, if a userreleases the hand from the sealing part 10, the exposed state of theremoval opening 51 can be maintained.

In this way, the user can removal a wet tissue 60 from the removalopening 51 and perform desired work while the packing bag 50 of thepresent invention is kept at hand. Even when the second and third wettissues are taken out in succession, operation can be smoothlyperformed, since it is not necessary to peel the sealing part again asthe exposed state of the removal opening 51 is maintained.

After the set tissue 60 was used, the sealing part 10 is adhered againto the packing bag 50 to seal the removal opening 51, and therefore,drying of wet tissue 60 stored in the packing bag 50 is sufficientlyprevented, and the entry of foreign matter into the packing bag 50 isalso prevented.

According to the sealing label 1 of the present embodiment, a cut line22 which cuts and divides the second base material 3 is provided at theboundary between the sealing part 10 and the support part 20, and thepeeling layer 23 is formed at the distal area 3 b, which is on thedistal side in the peeling direction. Accordingly, when the sealing part10 is peeled, the connecting part of the sealing part 10 and the supportpart 20 becomes thin, and the rigidity of the part becomes lower thanthat of the sealing label 1 itself.

Accordingly, even when a user stops having the sealing part, the statewhere the removal opening 51 is exposed is preferably maintained withoutthe sealing part is returned to the former state before peeling. As aresult, when a user uses the packing bag 50 so that the removal opening51 is sealed openably and closably, it is possible to use the bag suchthat a substance is easily removed since the exposed state of theremoval opening 51 is preferably maintained.

Furthermore, when a conventional sealing label is used, there is apossibility that, when a sealing part of the label is too stronglypulled, a support part of the label is separated off from the packingbag. On the other hand, in the case that the sealing label 1 is used,when the sealing part 10 is peeled until the peeling layer 23 isexposed, thereafter the strength which is used to pull the sealing part10 mainly acts on the adhesive layer 2A which bonds the first basematerial 2 and the second base material 3. The strength used for pullingthe sealing part 10 hardly acts on the adhesive layer 3A of the distalarea 3 b, which exists on the distal side in the peeling direction.

Accordingly, the strength which pulls the sealing part 10 does not actsuch that the support part 20 is peeled off from the packing bag 50. Inaddition, as the adhesive strength of the adhesive layer 2A is largerthan the adhesive strength of the adhesive layer 3A, a situation isunlikely to occur in which the first base material 2 is peeled from thesecond base material in the area where the peeling layer 23 does notexist in the distal area 3 b which is on the distal side in the peelingdirection. Accordingly, when the packing bag is usually used, asituation can be prevented wherein the sealing label 1 is entirelypeeled off from the packing bag 50 when the sealing part 10 is peeledoff.

In the present embodiment, an example is explained wherein an area F1where an opening is formed is a part of the laminate film F and isadhered to the sealing part 10 so that a removal opening 51 is exposed.However, instead of the above example, it is acceptable for the presentinvention that the area F1 where an opening is formed is removed fromthe film in advance, and the exposed surface of the adhesive layer 3A or4A of the sealing part which covers the removal opening may be treatedby the conventionally known detackifying treatment.

Next, the second embodiment of the present invention is explained whilereferring to FIGS. 5 to 8. The sealing label 31 of the presentembodiment is different from the sealing label 1 described above due toa third base material which is equipped to reinforce a removal opening.In the explanation described below, the same reference symbols are usedfor constituents which are identical to those explained above, and theoverlapped explanations thereof are omitted here.

FIG. 5 is a perspective view which shows a packaging back 50 to which asealing label 31 is attached. FIG. 6 shows a cross sectional view takenalong line B-B of FIG. 5. As shown in FIGS. 5 and 6, a sheet-like orfilm-like third base material 4 having a form which can completely covera removal opening 51 is attached to the sealing part 10.

The third base material 4 is formed to have an elliptical form which hasa larger outside periphery than the removal opening 51 of the packingbag 50, and the area thereof is smaller than the area of the sealingpart 10 so that the base material does not protrude to the outside ofthe sealing part 10. The form of the reinforce base material 4 can beselected optionally and may be an ellipse, a circle, a square or thelike. It is preferable that the form thereof is larger than that of theremoval opening and has an identical or similar form of the opening. Asshown in FIG. 6, the third base material 4 has an adhesive layer 4A(third adhesive layer) on one surface thereof which faces the side wherethe packing bag 50 exists. In the third base material 4, on anothersurface thereof to which the adhesive layer 4A is not provided,easy-peeling treatment is performed with a peeling varnish or the like.The reinforced base material 4 is adhered to the adhesive layer 3A ofthe second base material 3. As materials of the third base material 4,those which can be used for the first base material 2 and the secondbase material 3 can be used. The adhesive layer 4A has the adhesivestrength which is similar to that of the adhesive layer 3A, and can beadhered to and peeled from the packing bag 50 repeatedly.

The sealing label 31 has a second cut line 32 (the third base materialcut line) which has a larger outside periphery than the removal opening51, and merely cuts the third base material 4 and the adhesive layer 4.The area F1 where an opening is formed of the laminate film F is locatedon the inside of the second cut line 32.

Furthermore, detackifying treatment is performed on the adhesive layer4A by printing a dot or mesh-shaped pattern, which is not shown, with adetackifying agent, such that the treatment is performed at theperiphery of an area surrounded by the second cut line 32 and existingon the surface of the adhesive layer 4A which is adhered to the packingbag 50. The kind of the detackifying agent and the density of the dot ormesh-shaped patterns are determined by the peeling strength which is setin advance, and for example, the density may be 30 to 50%. The areawhere the detackifying treatment is performed can be optionallyselected. For example, the treatment may be performed for an oval shapehaving a line width D1 shown in FIG. 6, that is, the ring-like form(approximately doughnut shape form). Here, it is preferable that theline width D1 is set to at least include an area existing between thesecond cut line 32 and the cut C, when the packing bag 50 which has thesealing label 31 is observed in planar view.

It is preferable that the line width D1 is selected so that thering-like area 4 a of the reinforcing base material, which is left onthe laminate film F, can maintain the adhesion to the laminate film F,and that the area F1 where an opening is formed can maintain theadhesion to the adhesion layer 4A. That is, when the cross sectionthereof is observed, it is preferable that the line width D1 includesthe cut line C and the second cut line 32, and the outmost part of theline width D1 does not exceed the outer peripheral end of thereinforcing base material 4 a, and it is still more preferable that theoutmost part of the line width D1 does not exceed the center of thewidth of the reinforcing base material 4 a.

In the embodiment, when the sealing part 10 is first peeled, as shownFIGS. 7 and 8, the inside area surrounded by the second cut line 32 ofthe third base material 4 is peeled off from the packing bag 50.

At this time, the removal opening 51 is exposed, since the area F1,which exists as the inside area of the cut line C formed on the film Fand is provided as an area where an opening is formed, moves togetherwith the sealing part 10, while the area is adhered to the third basematerial 4 (the inner side of the third base material).

On the other hand, in the third base material 4, the area which existsat the outside of the second cut line 32 (hereinafter, referred to“reinforcing area 4 a”) has an approximately doughnut shape, and adheresto the packing bag 50 more strongly than the second base material 3, dueto easy-peeling treatment which is performed on one surface thereof andthe adhesive layer 4A existing on the other surface thereof.Accordingly, the area remains at the periphery of the removal opening51, without following the movement of the sealing part 10 accompanied bypeeling.

The reinforcing area 4 a (outer part of the third base material)functions as a reinforcing layer which reinforces the periphery of theremoval opening 51, and it preferably prevents occurrences of creases orslits in the periphery of the removal opening 51.

According to the sealing label 31 of the present embodiment, when thelabel is unsealed, the reinforcing area, which is a part of the thirdbase material 4, remains at the periphery of the removal opening 51 dueto the provided third base material 4. Accordingly, in addition to theeffects which are similar to that of the sealing label of the firstembodiment, it is possible to prevent breakage and the like around theremoval opening 51, and maintain a beautiful appearance thereof.

Furthermore, at the predetermined area of the adhesive layer 4A, adot-like detackifying treatment is performed. Accordingly, in the area,a portion where adhesive strength is relatively high and a portion whereadhesive strength is relatively low are distributed at dot ormesh-shaped patterns. Accordingly, as compared with the case wherein adetackifying treatment is performed all over the area, liquid medicineand the like which are impregnated in a wet tissue 60 hardly spread onto the area. As the result, it is possible to preferably preventfailures wherein the area F1 which is used to from the opening is peeledfrom the third base material 4, the reinforcing area is peeled from thepacking bag 50 or the like.

As described above, each embodiment of the present invention isexplained, however, the technical range of the present invention is notlimited to the embodiments described above. Without departing from thescope of the present invention, it is possible to perform various changeto each structural element which are used in each embodiments, removethe structural elements, or optionally combine the structural element.

For example, at the sealing part, detackifying treatment may beperformed for the adhesive layer at the vicinity of the first terminalpart, so that a user can easily pick up the part when peeling isperformed.

Furthermore, a substance which is stored in the packing bag is notlimited in particular. Instead of the sanitary material such as a wettissue described above, another material such as food, conventionalgoods or the like may be contained.

Furthermore, the sealing label of the present invention may be appliedto a packing container other than the packing bag. For example, thelabel may be used so that it is adhered to a container or the like madeof metal or resin, which has a rigidity larger than that of the packingbag.

INDUSTRIAL APPLICABILITY

The present invention provides a sealing label wherein, when the labelis peeled from a packing container, the label hardly returns to a statewherein an opening of the packing container is covered by the label.

DESCRIPTION OF THE REFERENCE NUMERALS

-   -   1, 31: sealing label    -   2: first base material    -   2A: adhesive layer    -   3: second base material    -   3A: adhesive layer    -   3 a: proximal area which is on the proximal side in the peeling        direction    -   3 b: distal area which is on the distal side in the peeling        direction    -   4: third base material    -   4 a: reinforcing area    -   4A: adhesive layer    -   10: sealing part    -   10A: first terminal part    -   10B: second terminal part    -   20: support part    -   21: a pair of slits    -   22: cut line    -   23: pealing layer    -   32: second cut line    -   50: packing bag (packing container)    -   51: removal opening (opening)    -   100: substance    -   C: cut    -   D1: line width    -   F: laminate film    -   F1: area where opening is formed

1. A sealing label comprising: a sheet-like or film-like first basematerial; and a sheet-like or film-like second base material which isbonded to one surface of the first base material, wherein the secondbase material is repeatedly and removably bonded to an opening of apacking container so that the base material seals the opening; whereinthe label includes a sealing part which seals the opening, and a supportpart which is connected with at least one part of the sealing part andbonded to the packing container; the sealing part and the support parthas a boundary part; the boundary part has a cut line, wherein the cutline extends in a direction intersecting with a peeling direction towhich the sealing part is peeled; the second base material is cut anddivided into a proximal area, which is on the proximal side in thepeeling direction, and a distal area, which is on the distal side in thepeeling direction, by the cut line; and a peeling layer, which releasesthe first base material from the second base material, is providedbetween the first base material and the second base material and at thedistal side from the cut line in the peeling direction.
 2. The sealinglabel according to claim 1, wherein the cut line does not cut and dividethe first base material.
 3. The sealing label according to claim 1,wherein the label is a laminate in which the first base material, afirst adhesive layer, the second base material and a second adhesivelayer are laminated in this order, and the adhesive strength of thefirst adhesive layer is larger than the adhesive strength of the secondadhesive layer.
 4. The sealing label according to claim 1, wherein thepeeling layer is a layer formed by coating a peeling varnish on thesecond base material.
 5. The sealing label according to claim 1, whereinthe peeling layer is a layer formed by performing a detackifyingtreatment on the adhesive layer.
 6. The sealing label according to claim1, wherein the pealing layer and the cut line are connected to eachother.
 7. The sealing label according to claim 1, wherein the first basematerial and the second base material are selected from a syntheticpaper, a polyethylene terephthalate, a polypropylene and a mixture ofthe resins.
 8. The sealing label according to claim 1, wherein thesealing part .has an approximately pentagonal shape, when observing thepart as the whole.
 9. The sealing label according to claim 1, wherein athird base material is provided on a surface of the second basematerial, wherein the surface is opposite to a surface on which thefirst base material is provided, and the third base material isseparated by a cut line into a reinforcing base material which ispositioned on an inner side and an approximately doughnut-shapedreinforcing base material which is positioned on an outer side.
 10. Apacking container, wherein the container has an opening and houses asubstance therein, and the sealing label according to claim 1 is bondedto the container and covers the opening.
 11. The packing containeraccording to claim 10, wherein the label is a laminate in which thefirst base material, a first adhesive layer, the second base materialand a second adhesive layer are laminated in this order, and theadhesive strength of the first adhesive layer is larger than theadhesive strength of the second adhesive layer.
 12. The packingcontainer according to claim 10, wherein the container has the openingand a part in the opening which is an area where the opening is formed,and the area adheres to the sealing label.